Steps to Reproduce

https://zkfiddle.org/sample/16c20mj/22-Another-new-ZK-fiddle

Click add

Current Result

Binding doesn't find the new item in the listproxy, need to call BindUtils.postNotityChange to force update

Expected Result

adding item should trigger dirty workflow, cause binder update

Debug Information

https://github.com/zkoss/zk/blob/master/zkbind/src/org/zkoss/bind/proxy/ListProxy.java#L55

ListProxy just sets _dirty to true directly.

https://github.com/zkoss/zk/blob/498bf441d963978e0e5e2efd1406c890aeaa6433/zkbind/src/org/zkoss/bind/proxy/AbstractCollectionProxy.java#L86

AbstractCollectionProxy calls setDirty(true) instead, which includes an update notification

Workaround

call BindUtils.postNotifyChange(bean, "collection") to force update